Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-19T02:56:39.200Z Has data issue: false hasContentIssue false
  • English
  • Français

High-Rayleigh-number convection of pressurized gases in a horizontal enclosure

Published online by Cambridge University Press:  15 October 2002

A. S. FLEISCHER  and
R. J. GOLDSTEIN
A. S. FLEISCHER
Affiliation:
Department of Mechanical Engineering, Villanova University, 800 Lancaster Ave, Villanova, PA 19085, [email protected]
R. J. GOLDSTEIN
Affiliation:
Heat Transfer Laboratory, Mechanical Engineering Department, University of Minnesota, Minneapolis, MN 55455, [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

High-pressure gases are used to study high-Rayleigh-number Rayleigh–Bénard convection in cylindrical horizontal enclosures. The Nusselt–Rayleigh heat transfer relationship is investigated for 1×109 < Ra < 1.7×1012. Schlieren video images of the flow field are recorded through optical viewports in the pressure vessel. The data set is well correlated by Nu = 0.071Ra0.328. The schlieren results confirm the existence of a large-scale flow that periodically interrupts the ascending and descending plumes. The intensity of both the plumes and the large-scale flow increases with Rayleigh number.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 469 , 25 October 2002 , pp. 1 - 12
Copyright
© 2002 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)